NumberNut
Number Nut: Shapes, Symbols, and Colors: 2 D Shapes
Did you know that two-dimensional shapes are also called polygons? This lesson describes the various 2-D shapes and includes two interactive games to reinforce skills.
PBS
Pbs Learning Media: Ready to Learn 2010 2015 Initiative (Pbs Kids Lab)
PBS KIDS Lab is built on the belief that every new technology is a learning opportunity. This page includes links to PBS programming, apps, games, videos, activities, and education resources. Teaching Tips provide step-by-step lessons...
Better Lesson
Better Lesson: Tree Mapping in 2 D
Identifying 2D shapes in common objects and sorting according to shapes connects the real world to learning shape names and attributes.